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Astronaut Requirements01.29.04

Have you ever wondered if you have what it takes to become a NASA Astronaut? The term "astronaut" derives from the Greek words meaning "space sailor," and refers to all who have been launched as crew members aboard NASA spacecraft bound for orbit and beyond. Since the inception of NASA's human space flight program, we have also maintained the term "astronaut" as the title for those selected to join the NASA corps of astronauts who make "space sailing" their career profession. The term "cosmonaut" refers to those space sailors who are members of the Russian space program.

The crew of each launched spacecraft is made up of astronauts or cosmonauts drawn from the various categories described in these pages. The crew assignments and duties of commander, pilot, mission specialist, or payload specialist are drawn from the NASA professional career astronauts. Mission Applicants for the Astronaut Candidate Program must be citizens of the United States.

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